US2061718A - Adjustable clamp - Google Patents

Adjustable clamp Download PDF

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Publication number
US2061718A
US2061718A US758677A US75867734A US2061718A US 2061718 A US2061718 A US 2061718A US 758677 A US758677 A US 758677A US 75867734 A US75867734 A US 75867734A US 2061718 A US2061718 A US 2061718A
Authority
US
United States
Prior art keywords
clamping
jig
bolt
work
carried
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US758677A
Inventor
Frank E Stahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
COLUMBUS MCKINNON CHAIN Corp
Original Assignee
COLUMBUS MCKINNON CHAIN CORP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by COLUMBUS MCKINNON CHAIN CORP filed Critical COLUMBUS MCKINNON CHAIN CORP
Priority to US758677A priority Critical patent/US2061718A/en
Application granted granted Critical
Publication of US2061718A publication Critical patent/US2061718A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00Clamps
    • B25B5/06Arrangements for positively actuating jaws
    • B25B5/10Arrangements for positively actuating jaws using screws
    • B25B5/104Arrangements for positively actuating jaws using screws with one screw and one clamping lever and one fulcrum element
    • B25B5/105Arrangements for positively actuating jaws using screws with one screw and one clamping lever and one fulcrum element with one end of the lever resting on a table and the screw being positioned between the ends of the lever
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/44Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44573Clasp, clip, support-clamp, or required component thereof including track or way guided and retained gripping member
    • Y10T24/44581Biased by distinct spring
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/44Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44573Clasp, clip, support-clamp, or required component thereof including track or way guided and retained gripping member
    • Y10T24/4459Clasp, clip, support-clamp, or required component thereof including track or way guided and retained gripping member with operator for moving guided member
    • Y10T24/44598Threaded cylindrical rod and mating cavity
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/55Cutting by use of rotating axially moving tool with work-engaging structure other than Tool or tool-support
    • Y10T408/561Having tool-opposing, work-engaging surface
    • Y10T408/5623Having tool-opposing, work-engaging surface with presser foot
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/55Cutting by use of rotating axially moving tool with work-engaging structure other than Tool or tool-support
    • Y10T408/563Work-gripping clamp
    • Y10T408/5633Adapted to coaxially grip round work
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/30Milling
    • Y10T409/309576Machine frame
    • Y10T409/309912Machine frame including relatively movable components and means to relatively immobilize these components

Description

Nov. 24, 1936. F E, STAHL 2,061,718'

ADJUST-ABLE CLAMP Filed Dec. 241, 1934 2 Sheets-Sheet l Nov. 24, 193s. f F. E. STAHL. 2,061,718

ADJUSTABLE CLAMP Filed Deo. 21, 1934 2 sheets-sheet 2 Zw/venida FRANK E. STAHL other uses to which it may be put.

Patented Nouv. 24, '1936 UNITI-:D sTATEs PATENT OFFICE Columbus McKinn on Chain Corporation,

Tonawanda, N. Y., a corporation of New York Application December 21,1934, sei-mno. '158,671

`2 claims. (ci. 9o-59) My invention relates in generalto l:adjustable clamps, and in particular to a clampused upon jigs or work piece holders for use in connection with machine tools or the like. Y

The principal object of my invention has been to provide a clamp by which the work pieces may be quickly inserted in and withdrawn from a tool jig. 'I'his feature is especially valuable in connection with factory work which is to be done on a production basis. a

Another object has been to provide a clamp for such a jig which may be'operatedto its clamping or unclamping position by a very small movement.

Moreover, my device is'of Iewpa'rts and may be easily and quickly adjusted so as to bring the operating handle of the clamp in the most convenient position vfor operation.

Furthermore.' my clamp is of such 'anature that it will securely hold the work piece in. place.

` 'I'he above objects and advantages have been accomplished by the device shown inthe accompanying drawings, o! which:

Fig. 1 is a front elevation of my device, partly in section.

Fig. 2 is a plan view thereof.

Fig. 3 is an enlarged, perspective view of the clamping member of the device.

Fig. 4 is an end view thereof.

Fig. 5 is a sectional view taken on line B-l or Fig. l.

l While my invention is 'applicable to jigs of various sorts, and while it may be used upon any machine tool which is to be used in operating upon a work piece, I have, for convenience of illustration, shown my device as applied to the bed of a milling machine and'designed to hold a shaft or other round work piece, it being obviousthat slight changes would be made in the 4structure oi? the jig in adapting it to various In the drawings, I represents the bed of the mining machine which is provided with the usuall `Tsbaped slots Il. lAs hereinbefore indicated, the device illustrated is designed for milling or f otherwise working upon ashaft I2 which, as is well understood, is best held in place by means ol a V-block I3, which is rested upon the top sur- Y face I4 of the milling machine and secured in place, if desired, by any well known means.

My device is provided with a. jig member which is preferably angular in shape, having a horizontal arm 2l and a vertical arm 22. The horizontal arm 2l 'isl provided with an aperture 23 for passage over a clamping bolt 24. The

vertical arm 2 2 is provide-du preferably with a' I notch 25'whichi'orms a Vshoulder 26. The distance from the shoulder 26 to the under side of Vthe horizontal arm 2| of the jig member is preierably the same as the distance from the top of 5 the work piece to the, top surface I4 of the table.

The downwardly extending lug 21 thus formed on' the -vertical arm 22 of the -jig member acts as a stop or detent for the jig member.

The clamping bolt 2'4 is carried byone of the 10 .T-shaped slots Il of the milling machine and is provided with a attened lower end 30 for passage between the narrow part of the -T-shaped slot,as clearly shown in Fig. 5. The lower end of the bolt is screwthreaded, and a nut 3| is car- `15 ried at the extreme lower end of the portion 30 and serves to engage-the under surfaces of the r wider part of the T-shaped slot.' A nut 32 and washer 33 are also placed uponv the lower end of the bolt, and these serve to rx'nly secure the bolt 20 within the T-shaped slot, allowing its body part 34 to extend upwardly through the aperture 23 of the jig member. A helical spring 35 is mountv ed upon the bolt under the jig member, whereby the horizontal arm 2l of such member will be moved upwardly when released, thus making-it` convenient to withdraw'the inished work piec from the jig and to insert a new one.

is a `rotatably mounted, anti-friction ball 43. Disposed on the extreme upper lend o1' the body 35 34 of the clamping bolt 24 is the clamping meme ber 44 of my device. This clamping member is screwthreaded to the upper end of the clamping bolt 24 and comprises a clamping head 45 and an operatingv arm 46 extending therefrom in `1Q a horizontal plane. The clamping member is provided o n its under surface with a helically shaped cam 4 1, as clearly shown in Figs. 1, 3,'and 4. This cam, as shown in the drawings, comprises a vhelixof suitable 45 pitch extending through substantially 360. 0bviously, however, two oppositely arranged cams, each extending only through 1330", may be used if desired. The screws and 4I are so adjusted 50 that the anti-friction balls 43 carried thereby,

-will engage with the cam face 41 of the clampingmember. Since the adjusting screws 40 and 4I are arranged diametrically opposite each other, the cam 61 oi the clamping member wil. c6

produce` a uniformly distributed pressure upon the horizontal arm 2| of the jig member.

When my device is to be set up for work upon shafts like those indicated at 2 in Figs. 1 and 2, the horizontal arm 2| of the jig member is brought to bear upon the Work-piece, and the handle 46 of the clamping member is moved to the position where it may be most conveniently operated by the workman. The adjusting screws 40 and 4| are now so rotated that the anti-friction balls 43 carried thereby are brought into engagementwith the cam-shaped surface 41 of the head of the clamping member with substantially equal pressure. When so adjusted, the

set screws 42 are drawn up so as to hold theA screws .40 and 4| in their adjusted positions. Obviously, when the adjusting screws are once set, they do not have to be altered for successive Work pieces since, inthe case of the shaft shown for illustrative purposes, the dimensions are always uniform. After once having been set, the work piece may be securely clamped in position by rotating the operating arm 46 of the 'clamping member in such direction as to cause the cam 41 to push the adjusting screws and the horizontal arm 2| of the jig downwardly in contact with the work piece I2. When the handle is operated in the opposite direction, the work piece will be released andthe spring 35 will cause the jig member 20 and screws 40 and 4| to move upwardly, remaining in contact with the cam 41 of the clamping member, whereby the work piece may be conveniently removed and a new work piece inserted. Such positions are shown by the dotted lines in Figs. 1 and 2.

Obviously, instead of fastening the clamping head 45 onto the bolt by means of screw threads, this head may be rotatably held in placeA on the bolt by means of a collar (not shown).

Obviously, this and other modifications of the details herein shown and described may be made without departing from the spirit of my invention or the scope of the appended claims, and I do not, therefore, wish to be vlimited to the exact embodiment herein shown and described, the form shown being merely a preferred embodiment thereof.l

Having thus described my invention, what I claim is:

1. An adjustable clamp for jigs adapted to cooperate with the bed of a machine tool, comprising a bolt, means for rigidly securing the bolt to the bed, a jig member slidablyl carried by the bolt and having cooperative relation with the bed and a work-piece, a clamping member having an operating handle rotatably carried upon the bolt and in interspaced relation with the jig member, said clamping member being provided with a helically formed working face on its lower surface, diametrically arranged adjusting screws carried by the jig member and having cooperative engagement with the helical face of the clamping member, and means for setting such screws in their adjusted positions.

2. An' adjustable clamp for jigs adapted to cooperate with the bed of a machine tool, comprising a bolt, means for rigidly securing the bolt to the bed, a jig member slidably carried by the bolt and having cooperative relation with the bed and a work-piece, a clamping member having an operating handle rotatably carried upon the bolt and in interspaced relation with the jig member, said clamping member being provided with a helically formed ,working face on its lower surface, diametrically arranged adjusting screws carried by the jig member and having cooperative engagement with the helical face of the clamping member, means for setting such screws in their adjusted positions, and antifriction means carried by the adjusting screws l and engageable with the Workingface of the clamping member.

. FRANK E. STAHL.

US758677A 1934-12-21 1934-12-21 Adjustable clamp Expired - Lifetime US2061718A (en)

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Application Number Priority Date Filing Date Title
US758677A US2061718A (en) 1934-12-21 1934-12-21 Adjustable clamp

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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467396A (en) * 1946-01-15 1949-04-19 Luisi Luigi Universal drill jig
US2470530A (en) * 1946-05-28 1949-05-17 Joseph M Stryhal Grinding block arrangement
US2515877A (en) * 1947-07-14 1950-07-18 Marathon Coal Bit Company Inc Cam-operated pivoted-jaw clamp having plural positions for cam and jaw fulcrums
US2627787A (en) * 1951-03-14 1953-02-10 Berthold R Zitner Machine-tool table work clamp
US2639744A (en) * 1951-03-07 1953-05-26 William B Herbert Adjustable cam actuated hold-down clamp
US2680980A (en) * 1950-05-18 1954-06-15 Imp Brass Mfg Co Quick opening and closing tube vise
US2727544A (en) * 1952-05-19 1955-12-20 George W Macarthur Nut actuated clamp bar
US2843176A (en) * 1953-08-28 1958-07-15 Imp Brass Mfg Co Draw-type tube straightener with clamping means allowing tube to be laterally inserted and removed
US3143905A (en) * 1960-11-17 1964-08-11 Schlatter Ag Metal cutting tool
US3191486A (en) * 1962-10-29 1965-06-29 Martin Marietta Corp Automatic torque indicating and applying devices
US3461769A (en) * 1968-03-06 1969-08-19 Fritz V Brosseit Adjustable length shoulder screw
DE1301950B (en) * 1961-05-16 1969-08-28 Emil Arnold Fa As Werkstueckspannelement or -zwischenstuetze usable device
US4614464A (en) * 1985-07-12 1986-09-30 Christensen Harry N Adjustable jig for hole formation
US4700437A (en) * 1986-07-23 1987-10-20 Hoshino Gakki Co., Ltd. Lever lock clamp
US4867404A (en) * 1988-05-16 1989-09-19 The United States Of America As Represented By The Department Of Health And Human Services Flexible holder for a cystoscope or the like
US4979273A (en) * 1990-05-21 1990-12-25 Friedrickson Jr Paul L Adjustable clamp
US5069510A (en) * 1985-07-03 1991-12-03 General Dynamics Land Systems, Inc. Center connector for shoe assemblies of track laying vehicle
US5735514A (en) * 1996-09-03 1998-04-07 Chick Machine Tool, Inc. Indexing apparatus
US20060225289A1 (en) * 2005-04-08 2006-10-12 Patents Holding Company Sealant cutting tool with quick release, repositionable blade
US8109494B1 (en) 2006-09-01 2012-02-07 Chick Workholding Solutions, Inc. Workholding apparatus having a movable jaw member
US8336867B1 (en) 2006-09-01 2012-12-25 Chick Workholding Solutions, Inc. Workholding apparatus having a detachable jaw plate
US8454004B1 (en) 2006-09-01 2013-06-04 Chick Workholding Solutions, Inc. Workholding apparatus having a movable jaw member
US8573578B1 (en) 2006-09-01 2013-11-05 Chick Workholding Solutions, Inc. Workholding apparatus
US20130298369A1 (en) * 2012-05-09 2013-11-14 General Electric Company Fixture and method for adjusting workpiece
US9227303B1 (en) 2006-09-01 2016-01-05 Chick Workholding Solutions, Inc. Workholding apparatus
US9352451B1 (en) 2013-05-02 2016-05-31 Chick Workholding Solutions, Inc. Workholding apparatus

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467396A (en) * 1946-01-15 1949-04-19 Luisi Luigi Universal drill jig
US2470530A (en) * 1946-05-28 1949-05-17 Joseph M Stryhal Grinding block arrangement
US2515877A (en) * 1947-07-14 1950-07-18 Marathon Coal Bit Company Inc Cam-operated pivoted-jaw clamp having plural positions for cam and jaw fulcrums
US2680980A (en) * 1950-05-18 1954-06-15 Imp Brass Mfg Co Quick opening and closing tube vise
US2639744A (en) * 1951-03-07 1953-05-26 William B Herbert Adjustable cam actuated hold-down clamp
US2627787A (en) * 1951-03-14 1953-02-10 Berthold R Zitner Machine-tool table work clamp
US2727544A (en) * 1952-05-19 1955-12-20 George W Macarthur Nut actuated clamp bar
US2843176A (en) * 1953-08-28 1958-07-15 Imp Brass Mfg Co Draw-type tube straightener with clamping means allowing tube to be laterally inserted and removed
US3143905A (en) * 1960-11-17 1964-08-11 Schlatter Ag Metal cutting tool
DE1301950B (en) * 1961-05-16 1969-08-28 Emil Arnold Fa As Werkstueckspannelement or -zwischenstuetze usable device
US3191486A (en) * 1962-10-29 1965-06-29 Martin Marietta Corp Automatic torque indicating and applying devices
US3461769A (en) * 1968-03-06 1969-08-19 Fritz V Brosseit Adjustable length shoulder screw
US5069510A (en) * 1985-07-03 1991-12-03 General Dynamics Land Systems, Inc. Center connector for shoe assemblies of track laying vehicle
US4614464A (en) * 1985-07-12 1986-09-30 Christensen Harry N Adjustable jig for hole formation
US4700437A (en) * 1986-07-23 1987-10-20 Hoshino Gakki Co., Ltd. Lever lock clamp
US4867404A (en) * 1988-05-16 1989-09-19 The United States Of America As Represented By The Department Of Health And Human Services Flexible holder for a cystoscope or the like
US4979273A (en) * 1990-05-21 1990-12-25 Friedrickson Jr Paul L Adjustable clamp
US5735514A (en) * 1996-09-03 1998-04-07 Chick Machine Tool, Inc. Indexing apparatus
US20060225289A1 (en) * 2005-04-08 2006-10-12 Patents Holding Company Sealant cutting tool with quick release, repositionable blade
US7308763B2 (en) * 2005-04-08 2007-12-18 Patents Holding Company Sealant cutting tool with quick release, repositionable blade
US8573578B1 (en) 2006-09-01 2013-11-05 Chick Workholding Solutions, Inc. Workholding apparatus
US8336867B1 (en) 2006-09-01 2012-12-25 Chick Workholding Solutions, Inc. Workholding apparatus having a detachable jaw plate
US8454004B1 (en) 2006-09-01 2013-06-04 Chick Workholding Solutions, Inc. Workholding apparatus having a movable jaw member
US8109494B1 (en) 2006-09-01 2012-02-07 Chick Workholding Solutions, Inc. Workholding apparatus having a movable jaw member
US9227303B1 (en) 2006-09-01 2016-01-05 Chick Workholding Solutions, Inc. Workholding apparatus
US8905392B1 (en) 2006-09-01 2014-12-09 Chick Workholding Solutions, Inc. Workholding apparatus having a detachable jaw plate
US10040173B1 (en) 2006-09-01 2018-08-07 Chick Workholding Solutions, Inc. Workholding apparatus having a detachable jaw plate
US9217335B2 (en) * 2012-05-09 2015-12-22 General Electric Company Fixture and method for adjusting workpiece
US20130298369A1 (en) * 2012-05-09 2013-11-14 General Electric Company Fixture and method for adjusting workpiece
US9352451B1 (en) 2013-05-02 2016-05-31 Chick Workholding Solutions, Inc. Workholding apparatus

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